2 * This file is part of Cleanflight and Betaflight.
4 * Cleanflight and Betaflight are free software. You can redistribute
5 * this software and/or modify this software under the terms of the
6 * GNU General Public License as published by the Free Software
7 * Foundation, either version 3 of the License, or (at your option)
10 * Cleanflight and Betaflight are distributed in the hope that they
11 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
12 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 * See the GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this software.
18 * If not, see <http://www.gnu.org/licenses/>.
29 #include "drivers/bus.h"
30 #include "drivers/bus_i2c.h"
32 static uint8_t i2cRegisteredDeviceCount
= 0;
34 bool i2cBusWriteRegister(const busDevice_t
*busdev
, uint8_t reg
, uint8_t data
)
36 return i2cWrite(busdev
->busdev_u
.i2c
.device
, busdev
->busdev_u
.i2c
.address
, reg
, data
);
39 bool i2cBusWriteRegisterStart(const busDevice_t
*busdev
, uint8_t reg
, uint8_t data
)
41 // Need a static value, not on the stack
46 return i2cWriteBuffer(busdev
->busdev_u
.i2c
.device
, busdev
->busdev_u
.i2c
.address
, reg
, sizeof (byte
), &byte
);
49 bool i2cBusReadRegisterBuffer(const busDevice_t
*busdev
, uint8_t reg
, uint8_t *data
, uint8_t length
)
51 return i2cRead(busdev
->busdev_u
.i2c
.device
, busdev
->busdev_u
.i2c
.address
, reg
, length
, data
);
54 uint8_t i2cBusReadRegister(const busDevice_t
*busdev
, uint8_t reg
)
57 i2cRead(busdev
->busdev_u
.i2c
.device
, busdev
->busdev_u
.i2c
.address
, reg
, 1, &data
);
61 bool i2cBusReadRegisterBufferStart(const busDevice_t
*busdev
, uint8_t reg
, uint8_t *data
, uint8_t length
)
63 return i2cReadBuffer(busdev
->busdev_u
.i2c
.device
, busdev
->busdev_u
.i2c
.address
, reg
, length
, data
);
66 bool i2cBusBusy(const busDevice_t
*busdev
, bool *error
)
68 return i2cBusy(busdev
->busdev_u
.i2c
.device
, error
);
71 void i2cBusDeviceRegister(const busDevice_t
*busdev
)
75 i2cRegisteredDeviceCount
++;
78 uint8_t i2cGetRegisteredDeviceCount(void)
80 return i2cRegisteredDeviceCount
;